Doctor profile · Federal record
Dr. Joshua Allen, MD
Medical Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Hematology (Internal Medicine) Physician · Fairfax, VA
- NPI 1942628458
- Accepts Medicare
- 12 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 8 locations across 2 states.
- Primary practice
-
3580 Joseph Siewick Dr Ste 403
Fairfax, VA 220331764
(703) 620-1144
fax (703) 620-3951 - Mailing address
-
Po Box 37174
Baltimore, MD 212973174
Virginia — 6 locations
- Additional location
-
1800 N Beauregard St Ste 210
Alexandria, VA 223111735
(703) 933-8125
fax (703) 933-8216 - Additional location
-
1800 N Beauregard St Ste 350
Alexandria, VA 223111725
(703) 933-8125
fax (703) 933-8216 - Additional location
-
3300 Gallows RD
Falls Church, VA 220423300
(703) 776-4001
fax (703) 776-7113 - Additional location
-
4320 Seminary RD
Alexandria, VA 223041535
(703) 504-3000
fax (703) 504-3388 - Additional location
-
44055 Riverside Pkwy Ste 108
Leesburg, VA 201765179
(703) 858-8600
fax (703) 858-8603 - Additional location
-
8081 Innovation Park Dr
Fairfax, VA 220314867
(571) 472-4724
fax (571) 472-0241
Pennsylvania — 1 location
- Additional location
-
333 Cottman Ave
Philadelphia, PA 191112434
(216) 444-2200
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- February 24, 2022
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Virginia #0101268640
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942628458. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,014
Distinct HCPCS
9
Medicare allowed
$145,543
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 525 | 174 | $156 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 263 | 155 | $107 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 102 | 102 | $200 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 42 | 33 | $87 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 19 | 19 | $143 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $148 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 16 | $192 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 16 | 14 | $132 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 12 | 12 | $73 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 113. This provider delivers 9.0× the peer median.Open Payments
Industry payments received
All-time total
$19
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 1 | $18.67 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
602
Patients
116
Total drug cost
$2,064,909
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Abiraterone Acetate | Generic | 122 | 18 | $358,171 |
| Orgovyx (Relugolix) | Brand | 81 | 0 | $229,573 |
| Prednisone | Generic | 75 | 28 | $558 |
| Eliquis (Apixaban) | Brand | 54 | 11 | $45,523 |
| Xtandi (Enzalutamide) | Brand | 38 | 0 | $565,292 |
| Dexamethasone | Generic | 35 | 16 | $618 |
| Revlimid (Lenalidomide) | Brand | 33 | 0 | $586,847 |
| Acyclovir | Generic | 32 | 0 | $631 |
| Bicalutamide | Generic | 30 | 28 | $784 |
| Lenalidomide | Generic | 21 | 0 | $275,555 |
Hospital affiliations
Frequently asked questions
What is Dr. Joshua Allen's medical specialty?
Dr. Joshua Allen practices Medical Oncology Physician in Fairfax, VA.
Where does Dr. Joshua Allen practice?
Dr. Joshua Allen practices at 3580 Joseph Siewick Dr Ste 403, Fairfax, VA 220331764. Office phone: 7036201144.
What is Dr. Joshua Allen's NPI?
Dr. Joshua Allen's National Provider Identifier (NPI) is 1942628458, issued by NPPES.
Does Dr. Joshua Allen accept Medicare assignment?
Yes. Dr. Joshua Allen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joshua Allen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.